Search a number
-
+
27769404 = 22313213693
BaseRepresentation
bin110100111101…
…1101000111100
31221020211110110
41221323220330
524102110104
62431110020
7455015235
oct151735074
957224413
1027769404
1114747623
129372310
1359a3900
14398c08c
152687e89
hex1a7ba3c

27769404 has 36 divisors (see below), whose sum is σ = 70168056. Its totient is φ = 8543808.

The previous prime is 27769373. The next prime is 27769409. The reversal of 27769404 is 40496772.

It is a super-2 number, since 2×277694042 = 1542279597030432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27769409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4819 + ... + 8874.

Almost surely, 227769404 is an apocalyptic number.

It is an amenable number.

27769404 is an abundant number, since it is smaller than the sum of its proper divisors (42398652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27769404 is a wasteful number, since it uses less digits than its factorization.

27769404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13726 (or 13711 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 27769404 is about 5269.6683007567. The cubic root of 27769404 is about 302.8229967521.

The spelling of 27769404 in words is "twenty-seven million, seven hundred sixty-nine thousand, four hundred four".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 169 338 507 676 1014 2028 13693 27386 41079 54772 82158 164316 178009 356018 534027 712036 1068054 2136108 2314117 4628234 6942351 9256468 13884702 27769404